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Re: Let's talk PCV systems
The closed system works just fine usually, but you need to keep an eye on the valve. What you want is a negative pressure situation so that your pistons and rings are not fighting the crankcase pressure. Some hot rodders or racers actually install a vacuum pump to reduce the pressure even more. They can actually pick up some hp that way. Other systems use a down tube that runs down along the chasis and creats vacuum as you move.
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